House sewer
Lateral sewer
Branch sewer
All of these
Answer is Right!
Answer is Wrong!
Waste water engineering
2. When drainage to sewage ratio is 20, the peak dry weather flow is A. 20% of the design discharge B. Slightly less than 5% of the design discharge C. Slightly more than 5% of the design discharge D. None of these
20% of the design discharge
Slightly less than 5% of the design discharge
Slightly more than 5% of the design discharge
None of these
Answer is Right!
Answer is Wrong!
3. The grit and silt of the grit chambers, may not be used for A. Raising low lying areas by dumping B. Concreting C. Both A and B D. Neither A nor B
Raising low lying areas by dumping
Concreting
Both A and B
Neither A nor B
Answer is Right!
Answer is Wrong!
4. If q is the average sewage flow from a city of population P, the maximum sewage flow A. $${\text{Q}} = \left( {\frac{{4 + \sqrt {\text{P}} }}{{18 + \sqrt {\text{P}} }}} \right){\text{q}}$$ B. $${\text{Q}} = \left( {\frac{{18 + {\text{P}}}}{{4 + \sqrt {\text{P}} }}} \right){\text{q}}$$ C. $${\text{Q}} = \left( {\frac{{18 + \sqrt {\text{P}} }}{{4 + \sqrt {\text{P}} }}} \right){\text{q}}$$ D. $${\text{Q}} = \left( {\frac{{5 + \sqrt {\text{P}} }}{{15 + \sqrt {\text{P}} }}} \right){\text{q}}$$
$${ ext{Q}} = left( { rac{{4 + sqrt { ext{P}} }}{{18 + sqrt { ext{P}} }}} ight){ ext{q}}$$
$${ ext{Q}} = left( { rac{{18 + { ext{P}}}}{{4 + sqrt { ext{P}} }}} ight){ ext{q}}$$
$${ ext{Q}} = left( { rac{{18 + sqrt { ext{P}} }}{{4 + sqrt { ext{P}} }}} ight){ ext{q}}$$
$${ ext{Q}} = left( { rac{{5 + sqrt { ext{P}} }}{{15 + sqrt { ext{P}} }}} ight){ ext{q}}$$
Answer is Right!
Answer is Wrong!
5. Fresh sewage may become stale in A. One hour B. Two to three hours C. Three to four hours D. Six hours
One hour
Two to three hours
Three to four hours
Six hours
Answer is Right!
Answer is Wrong!
6. The sewer which received discharge from two or more main sewers, is known as A. A trunk sewer B. An outfall sewer C. A main sewer D. An intercepting sewer
A trunk sewer
An outfall sewer
A main sewer
An intercepting sewer
Answer is Right!
Answer is Wrong!
7. Pick up the correct statement from the following: A. The boning rod is used for checking the levels of the sewer inverts B. Manhole covers are made circular for the convenience of the cleaning staff C. A manhole is classified as shallow manhole if its depth is less than 0.9 m D. All the above
The boning rod is used for checking the levels of the sewer inverts
Manhole covers are made circular for the convenience of the cleaning staff
A manhole is classified as shallow manhole if its depth is less than 0.9 m
All the above
Answer is Right!
Answer is Wrong!
8. Pick up the correct statement from the following: A. The circular section of sewers provides maximum hydraulic mean depth B. The circular sewers are provided for separate sewerage system C. The circular sewers work efficiently if the sections run at least half full D. All the above
The circular section of sewers provides maximum hydraulic mean depth
The circular sewers are provided for separate sewerage system
The circular sewers work efficiently if the sections run at least half full
All the above
Answer is Right!
Answer is Wrong!
9. The laying of sewers is done with A. Magnetic compass B. Theodolite C. Level D. Clinometer
Magnetic compass
Theodolite
Level
Clinometer
Answer is Right!
Answer is Wrong!
10. The gradient of sewers depends upon A. Velocity of flow B. Diameter of the sewer C. Discharge D. All the above
Velocity of flow
Diameter of the sewer
Discharge
All the above
Answer is Right!
Answer is Wrong!